• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    1. A method of biaxial molecular orientation of a plastic material by na1doev with simultaneous blowing of the tubular preform by feeding into. into it under the pressure of the working environment, cooling and longitudinal stretching with the help of rolls or cylinders, compressing the workpiece, distinguishing. and so that, in order to ensure the orientation of the sheet material with a thickness of more than 1 mm and improve quality by increasing the uniformity of orientation by providing the same temperature over the workpiece, prior to the blow, they form a tubular billet of the sheet by sealing each other over the edges of the sheet. blowing the tubular billet is carried out when it is fed into the chamber filled with heated fluid, feeding heated fluid into the tube as working medium, the first and second liquids having the tempo rature ZO-IOO C, and cooling the workpiece is carried out at its input into a second chamber filled with a liquid having a lower temperature than said first and second liquids using LRA "pro.- Dolni stretching the preform is carried out prior to cooling. 2. Method POP.1, characterized in that water is used as the first, second and third liquids. 3. A device for biaxial molecular orientation of a plastic material containing means for discharging the blank, means for organizing the direction of the expanded pipe, made in the form of guide plates or guide surfaces. , and means for longitudinal stretching of the pipe, made in the form of jointly operating rolls, characterized in that it is provided with a chamber filled with heated liquid, preferably water, having an inlet annular opening provided with an elastic annular seal to the cuff and an outlet an opening in which rollers are installed for longitudinal drawing of the pipe. W from IS ate 00 to to cm
    公开号:SU1258319A3
    申请号:SU3459276
    申请日:1982-03-12
    公开日:1986-09-15
    发明作者:Хей Петер；Кяербюе Петерсен Стеффен；Поульсен Стиг
    申请人:Тетра Пак Девелопмент С.А.(Фирма)；
    IPC主号:
    专利说明:

    112
    The invention relates to the processing of plastics, and more specifically to a method for biaxial orientation of a plastic material and a device for its implementation, and can be used to increase the mechanical strength of the material in the manufacture of packages that compress the contents, in particular for the manufacture of beer bottles thermoplastic material.
    The purpose of the invention is to provide orientation of the sheet material with a thickness of more than one millimeter and improved qualities by being uniformly oriented. By providing the same temperature throughout the thickness of the workpiece,
    On fig. 1 schematically given the device, a longitudinal section; in fig. 2. - the material that is subjected to the reference point in the unit.
    . The device for biaxial molecular orientation of the plastic material in the form of a sheet contains a magazine-- bobbin 1 with pretreated sheet plastic MaTepHaj joM unoriented, or oriented only in the longitudinal direction 5 for example, a laminated sheet plastic is molded in the form of a tubular billet using a forming device, e shown in the drawing. The tubular billet is made in such a way that the crown sections of the sheet plastic material are joined together by means of overlapping willow
    Sealing of the above-mentioned seam, formed by overlapping edges with one another, is carried out with the help of a sealing device 2, with the help of which the overlapping areas are caustic with the other. The hem is heated to the top
    melting and simultaneously interfacing to form a joint connection. In a section of the tubular billet located between its edges, a filling tube 3 is placed, which serves to supply the liquid under excess pressure. Mentioned chickpea tube 3 passes through the pipes. billet in the chamber 4 through the inlet 5, made in the side wall of the chamber. The tubular billet is passed through the said inlet 5 in the lateral station of the chamber so that. would ensure the installation is elastic

    five
    0
    5 0 j
    0
    five
    0
    five
    92
    a sealing element in the form of an annular sealing cuff fixed in the front side; The wall of the chamber 4 around the circumference of the openings 5 and providing the hermetic seal of the outer surface of the tubular billet 3. More tggo, around the peg-the-left portion of the filling tube 3, there is provided a sealing ring 7 forming a sealing seal with the outer bottom of the filling tube 3, and also with the inner surface of the tubular billet.
    The cavity of the chamber 4 is filled with liquid 8, preferably water. Chamber 4 was equipped with devices (e shown in the drawing) for heating the above-mentioned liquid to a temperature within UO-SO, C, preferably about 80-9.0 ° C, as well as a thermostat (not shown in the drawing line) located in this way so that the control is ensured, and the temperature of the fluid 8 is controlled at the desired level. The output rejection 9 of the chamber 4 is formed by two parallel rollers 10, located in the rear side wall 11 and forming a closing elongated aperture gap, through which the oriented blank can be passed by stretching the tubular billet in folded form. In order to give a specific location and direction of movement of the bloated part of a tubular preform located in the liquid 8, a guide net or a surface 13, which surrounds the tubular preform, is located in the chamber 4 at the inlet 5, which preferably has a dissociating co-axial structure. which form, and from the outlet 9 in ka :. Ere 4 - guides on i epxHocTK 13, preferably conically, which converge towards the top opening 8. in the stack 11. To cool the oriented and folded in the form of a flat ribbon of tubular billet, the second compartment of the chamber 14, which is also filled with liquid 15, but. with a lower temperature of approximately 10 to 20 ° Co. The second chamber 14, in addition, furthermore provides co-operating paired pressure output rolls 16 between which there is a cooled tubular billet, after which
    Loose its output in the upward direction from the liquid 15 to the storage unit-reel 17, located outside the chamber 4.
    The method according to the invention is carried out on the described device, which operates as follows.
    From the store - reel 1, the sheet 18 of plastic sheet material is wound, which in the case described here is assumed to be non-oriented. An example is a laminate based on polyester, shown in FIG. 2. Non-oriented sheet material 18 is folded in the form of a tube / billet 19, which is sealed along a longitudinal seam using a device. 2 and is fed through the opening 5 into the chamber 4. The outer surface of the tubular billet 19 is hermetically sealed relative to the inlet hole 5 by means of an elastic sealing poppy, fixed along the periphery of the opening 5.
    Chamber 4, which in the proper case has thermal insulation on the walls, is filled with liquid 8, preferably water heated to a tag-sherature suitable for material orientation by stretching. For a polyester case, this temperature is approximately 80-90 C.
    If the tubular billet 19 is fed into the liquid in chamber 4. then the plastic material forming the tubular billet is heated in such a way that it gradually acquires the temperature that of liquid 8 and in this way. adjusted to conditions for orienting stretching. Through the filling tube 3, which is inserted into the tubular billet 19, and the end of which penetrates into the portion of the tubular billet 19 located inside the chamber 4, the liquid under pressure, which preferably can be water, is supplied. In order to ensure sufficient heating of the inner surface of the tubular blank 19 made of plastic material, under excessive pressure, the fluid must be heated to approximately 90 C. The liquid pressure must correspond to the diameter of the tubular blank 19 and, in practical terms, can vary s limits from. 2
    f5 20-25
    d
    about
    five
    0
    up to 15 kg / cm. In order to maintain the pressure of the fluid in the inflatable area 20 of the tubular blank 19 of plastic material 5 located inside the chamber 4, the tubular blank must be hermetically sealed. This is achieved by using a sealing ring 7, which is positioned around the filler tube 3 in such a way that a seal is achieved relative to the inner surface of the tubular blank 19. In order to achieve a better sealing seal, it is advisable to position the sealing ring 7 just in the hole area 5 and moreover, in such a way that the sealing ring 7 can receive support from the inside of the opening 5. However, one has to bear in mind and agree with some leakage.
    Due to the fact that the plastic material on the spread. The foam section of the tubular billet is heated to approximately 80-90 ° C and is subjected to internal pressure, tensile forces occur in the material, under the influence of which the tubular billet 19 expands, as shown in FIG. . 1. The expansion of the pipe is organized and guided by the support surfaces 12 defined by the end of the Conriguradia. As a result of the expansion of the tubular billet 19 with a definite -; temperature, in the plastic material, a molecular orientation arises in a direction transverse to the longitudinal axis of the tubular preform. This means that the tensile strength of the material (or tensile strength) in the indicated direction increases, the One-time material becomes sturdier and thinner as a result of stretching.
    In addition to the lateral orientation of the tubular blank 19, orientation in the longitudinal direction occurs. The blank, starting at section 20, is discharged from the chamber 4 in the form of a flat tape and drawn between two, preferably rotated. rolls 16. The rolls 10 in the wall 11 of the separating chamber 4 and 14 grip the pipe after the section 20. The co-located rolls 10 form an extended slit gap in the separation wall 11 of the chamber 4. Folding the parts5
    The tubular blank 19 19 is arranged by converging guide surfaces 13. The rotation of the outgoing rolls 16 is adjusted in such a way as to provide the desired stretch of the tubular blank, starting from section 20, in the longitudinal direction, Biaxially oriented, folded into a flat ribbon, Pasting through an elongated slotted gap between the rollers 10, is directed to the second chamber 19, containing
    in the form of water Due to the presence of some leakage between the rollers 10, the part 21 of the tubular billet.
    12
    cooling liquid 15 temperature about 10 ° C.
    nineteen
    placed in chamber 14 will not
    however, it does not affect the course of the cooling and stabilization processes. In conclusion, the oriented pipe after section 21 is wound around a storage ring - reel 17.
    Now the processing of a biaxially stretched pipe of plastic material is completed and the pipe, if desired, can be opened, cut along the longitudinal axis, which forms a homogeneous sheet material. Further, the cycle of operation of the device is repeated.
    }eight

    nineteen
    L.
    // i
    a- "I
    efttjiff.l
    Editor A.Dolinich
    Compiled by I. Frolova
    Tehred M. Khodanich Proofreader T. Kolb.
    Order 5044/60 Circulation 640 Subscription to VNIIPI State Committee of the USSR
    for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5
    Production and printing company, Uzrgorod, Project St., 4
    权利要求:
    Claims (3)
    [1]
    1. The method of biaxial molecular orientation of a plastic material by heating with simultaneous blowing of a tubular billet by applying a working medium into it under pressure, cooling and longitudinal tension using rolls or cylinders compressing the billet, characterized in that, in order to ensure orientation of the sheet material with a thickness of more than 1 mm and improving quality by increasing the uniformity of orientation by ensuring the same temperature across the thickness of the workpiece, before blowing form a tubular workpiece from a sheet by sealing the edges of the sheet overlapping each other, and the tubular billet is heated and inflated by feeding it into a chamber filled with a heated liquid, feeding heated liquid into the pipe as a working medium, the first and second liquids having a temperature of 70-100 ° С, and the workpiece is cooled when it is introduced into a second chamber filled with a liquid having a lower temperature than the first and second specified liquids, while the longitudinal drawing of the workpiece is carried out before it is cooled.
    [2]
    2. The method of pop. 1, characterized in that water is used as the first, second and third liquids.
    [3]
    3. Device 'for biaxial molecular orientation of a plastic material, containing means for blowing up the workpiece, means for organizing the direction of the expanded pipe, made in the form of guide plates or surface guides. tei, and means for longitudinal drawing of the pipe, made in the form of jointly acting rolls, characterized in that it is provided with a chamber filled with heated liquid, preferred water, an inlet ring having an elastic annular sealing collar, and an outlet in which rolls for pipe longitudinal drawing.
    类似技术:
    公开号 | 公开日 | 专利标题
    US3555604A|1971-01-19|Biaxial orientation
    US3248463A|1966-04-26|Continuous production of biaxially oriented crystalline thermoplastic film
    US2987767A|1961-06-13|Fluid forming of plastics
    US3456044A|1969-07-15|Biaxial orientation
    US4886634A|1989-12-12|Process and apparatus for the production of an extruded, stretched, seamless tube
    US4589563A|1986-05-20|High-pressure container and method of making the same
    SU1258319A3|1986-09-15|Method and apparatus for biaxial molecular orientation of plastic material
    GB921308A|1963-03-20|Process for producing polymeric tubular films
    GB1190472A|1970-05-06|Method and apparatus for the production of Tubular Film
    US3725519A|1973-04-03|Process for the continuous production of multiaxially stretched tubular films of linear polyesters
    US3294885A|1966-12-27|Method for blow molding thermoplastic
    US4443399A|1984-04-17|Method of producing biaxially oriented sheet or film and apparatus therefor
    SU1500148A3|1989-08-07|Bag film cooling arrangement
    US3608019A|1971-09-21|Method and apparatus for manufacturing a biaxially oriented cylindrical film body
    US3103036A|1963-09-10|Method and apparatus for producing double-walled containers
    DK143642B|1981-09-21|PROCEDURE FOR MAKING A PROTECTIVE COVER ON A GLASS CONTAINER
    US3217359A|1965-11-16|Apparatus for thermoplastic film manufacture
    US3315308A|1967-04-25|Continuous production of biaxially oriented, crystalline, thermoplastic film
    CA1036308A|1978-08-15|Packing material that can be shaped under the effect of heat
    US3307219A|1967-03-07|Manufacture of plastic film
    ES442208A1|1977-04-16|Production of bags and sacks
    US4512832A|1985-04-23|Method for manufacturing a tube package
    JP2506583B2|1996-06-12|Method for manufacturing laminated tubular body
    US3274314A|1966-09-20|Thermoplastic film production
    US3554828A|1971-01-12|Process for the manufacture of bonded plastic sacks employing an electrical field and an ionizable gas
    同族专利:
    公开号 | 公开日
    ES8303176A1|1983-02-01|
    EP0060602A3|1984-05-16|
    MX160243A|1990-01-12|
    US4863670A|1989-09-05|
    EP0060602B1|1987-09-02|
    ES510382A0|1983-02-01|
    DE3277114D1|1987-10-08|
    AU8137682A|1982-09-16|
    AU546729B2|1985-09-19|
    JPS57160606A|1982-10-04|
    CH656346A5|1986-06-30|
    CA1186864A|1985-05-14|
    AT29241T|1987-09-15|
    EP0060602A2|1982-09-22|
    BR8201362A|1983-01-25|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE67799C|s. BERBUTO und E. MARGUET in Saventhem, Belgien|Paper pulp Dutch|
    US2804642A|1953-06-02|1957-09-03|American Viscose Corp|Method and apparatus for the continuous expansion of tubular objects|
    US2987776A|1957-12-23|1961-06-13|Union Carbide Corp|Method of biaxially stretching tubular styrene polymer film by inflating with gas and liquid|
    US2979777A|1958-11-06|1961-04-18|Du Pont|Tubular film stretching process|
    US3090991A|1961-01-03|1963-05-28|Monsanto Chemicals|Biaxial orientation apparatus|
    US3121760A|1961-10-26|1964-02-18|Koppers Co Inc|Method of extruding polystyrene tube|
    BE647957A|1963-05-16|
    US3296344A|1963-05-29|1967-01-03|Radiation Dynamics|Method and apparatus for expanding plastic tubing|
    DE1205263B|1963-06-12|1965-11-18|Basf Ag|Process for the production of shrinkable films from radically crosslinkable plastics|
    US3291876A|1964-05-05|1966-12-13|Beloit Corp|Method and mechanism for biaxially orienting extruded tubular film|
    DE1504617A1|1964-06-10|1969-04-17|Betz Dr Walter|Method and device for the continuous production of biaxially uniformly stretched tubular films made of polymeric thermoplastics in a closed space|
    US3260776A|1964-10-29|1966-07-12|Grace W R & Co|Production of biaxially stretch oriented polypropylene film|
    US3466356A|1966-10-27|1969-09-09|Celanese Corp|Method and apparatus for making plastic film|
    GB1182632A|1967-06-26|1970-02-25|Fluorodynamics Inc|Improvements in and relating to the Manufacture of Tubular, Heat-Shrinkable Roll Coverings of Thermoplastic Material|
    GB1282062A|1969-03-08|1972-07-19|Showa Denko Kk|A method and apparatus for manufacturing a biaxially oriented cylindrical film|
    FR2205401B1|1972-11-08|1976-10-29|Flax V|
    JPS503790A|1973-05-15|1975-01-16|
    JPS6241859B2|1979-01-29|1987-09-04|Mitsubishi Plastics Ind|JP2866727B2|1990-09-27|1999-03-08|三菱樹脂株式会社|Heat shrinkable tubing|
    US5925307A|1997-05-12|1999-07-20|Intevep, Sa.|Method for forming oriented plastic pipe|
    JP3177236B2|1998-02-28|2001-06-18|宇部日東化成株式会社|Stretching equipment for long materials made of thermoplastic resin|
    GB0101994D0|2001-01-25|2001-03-14|Dupont Teijin Films Us Ltd|Process for the production of coated polumeric film|
    GB2425983A|2005-05-11|2006-11-15|Mark Johnathan Gray|Biaxial orienting a wet film for packaging|
    KR100988436B1|2005-09-14|2010-10-18|아사히 가세이 케미칼즈 가부시키가이샤|Block copolymer and process for production of thermally shrinkable film|
    CN112123746B|2020-08-14|2021-07-06|广东金明精机股份有限公司|Apparatus and method for subsequent foaming of film|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    CH1740/81A|CH656346A5|1981-03-13|1981-03-13|METHOD FOR MOLECULAR ORIENTATION OF PLASTIC MATERIAL.|
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